Paper-folding machine.



No. 802,057. PATENTED OCT. 17, 1905. I. G. NIND & P. JULIAN. PAPER FOLDING MACHINE. APPLIGATIOH FILED FEB. 20, 1904. RENEWED FEB. 11. 1905.

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PATENTED 00T.17,1905.

P. G. NIND & F. JULYAN. PAPER FOLDING MACHINE.

APPLICATION FILED FEB. 20, 1904. RENEWED FEB. 11, 1906.

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ummmmmm M" 11W Min/mg :iUl II I No. 802,057. x PATENTED OCT. 17, 1905. P. G. NIND & P. JULYAN.

PAPER FOLDING MACHINE.

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APPLICATION FILED FEB. 20, 1904. RENEWED FEB. 11, 1905.

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No. 802,057. I PATENTED 001". 17, 1905. -F. G. NI'NDK: F. JULYAN. I PAPER FOLDING MACHINE.

APPLICATION FILED FEB. 20, 1904. RENEWED FEB. 11. 1905. v

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UNITE STATES PATENT ornion.

FREDERICK G. NIND AND FREDERICK JULYAN, OF CHICAGO, ILLINOIS, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO NIND LETTER FOLDER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

Specification of Letters Patent.

PAPER-FOLDING MACHINE.

Patented Oct. 17, 1905.

To (ti/I whom it Tit/Ly concern.-

Be it known that we, FREDERICK Gr. NIND and FREDERICK J ULYAN, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Paper-Folding Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to machines for folding comparatively .smallsheets of paper and will be found of particular advantage in the folding of printed circulars where large quantities of such circulars are to be'prepared for insertion in envelops.

. The invention has for its objects to provide improved means for taking in rapid succession and at regular intervals of time single sheets of paper from a pile and imparting to them a plurality of folds, so as to put them in condition for insertion in ordinary envelope.

A further object of the invention is to provide improved means for insuring the folded sheets being arranged in a neat and compact bunch and providing means for keeping such bunch of folded sheets sufliciently away from the point at which the sheets are delivered from. the machine after being folded to insure the bunch of folded sheets not interfering with the proper delivery of the sheets as they pass from the machine.

It is further the object of the invention to improve this class of folding-machines in many details of construction and operation.

We accomplish these objects by the devices and combinations of devices shown in the drawings and hereinafter specifically described. I

That which we believe to be new will be pointed out in the claims.

In the drawings, Figure 1 is a plan view. Fig. 2 is a side elevation. Fig. 3 is also a side elevation taken from the opposite side of the machine to that shown in Fig. 2. Fig. I is an end elevation taken from the end of the machine at which the sheets are fed in with the paper-folding frame removed. Fig. 5 is a vertical longitudinal central section. Fig.

6 is an enlarged vertical cross-section taken at line '6 6 of Fig. 1; and Fig. 7 is a detail, being an enlarged vertical section taken at line 7 7 of Fig. 5. 1

Referring to the drawings, 10 indicates the side bars of the main frame, on the forward ends of each of which extends laterally an arm 11, each arm 11 supporting at its outer end a vertical post 12. The parts 10, 11, and 12 are preferably cast in a single piece.

13 indicates a wide cross-bar extending across the forward end of the machine with its lower edge raised above the side bars 10 of the frame, such cross-bar being secured by bolts 14 in the construction shown to the upright posts 12.

15 indicates a bed-plate secured in any suitable manner upon the upper edges of the side bars 10 of the frame and having its forward end curved downward, as clearly shown in Fig. 5, over the end bar of the frame.

16 indicates another plate lying directly over the bed-plate 15, but of less width than such bed-plate, as clearly shown in Fig 1. This plate 16 is suitably supported above the bed-plate, so as to be separated therefrom throughout its length by a short space, as clearly shown in Fig. 5. This plate 16 is designed to have the sheets of paper folded closely over its edges and willtherefore be of the proper width to adapt sheets to be folded over its opposite side edges.

17 indicates the driving-shaft extending across the machine near .the forward end thereof and suitably journaled in the side bars 10. One end of this shaft extends a considerable distance from the side of the machine and has made fast to it a pulley 18, which in the construction shown is adapted to be turned by a handle 19; but it is understood, of course,

that the machine is adapted to be operated by suitable power devices.

20 indicates another shaft extending longitudinally of the machine and at that side of the machine opposite that at which the pulley 18 is located, said shaft 20 being suitably journaled at one of its ends in a bearing-box 21, bolted to one of the extensions 11 of the frame, and at its other end journaled in a bearing formed in a bracket 22, extending out from and suitably secured to one of the side bars 10. This shaft 20 is provided with a bevel-gear 23, meshing with another bevelgear 2 1 on the end of the main drivingshaft 17 25, 26, 27, and 28 indicate counter-shafts suitably journaled in the side bars of the main frame and each provided on that end that is near the cross-shaft 20 with bevel-gears 29,

30, 31, and 32, that mesh, respectively, with bevel-gears 33, 34, 35, and 36, secured upon said cross-shaft 20.

37, 38, and 39 indicate rolls secured upon the main drive-shaft 17 and the counter-shafts 25 and 26, respectively, and located between the side bars 10 of the frame and of a diameter that allows them to project through openings in the bed-plate 15, the extent of such projection being such as to cause their surfaces to extend slightly above the upper surface of such bed-plate. These openings are clearly shownin Fig. 5 and are indicated, respectively, by 40, 41, and 42. 43 indicates a star-shaped wheel mounted fast upon the central portion of the countershaft 27, such star-shaped wheel being formed, preferably, of rubber or other comparatively soft material. This star-shaped wheel also projects slightly beyond the upper surface of the bed-plate 15, an opening 44 being formed in such bed-plate to allow such projection.

45 indicates a roll made fast upon the counter-shaft 28 and also projecting slightly above the upper surface of the said bed-plate, but such last-named roll does not project through said bed-plate, but is located forward of the same.

46 indicates a rigid arm projecting from the wide cross-bar 13 and preferably formed integral therewith. Said arm 46 is located over the central portion of the inner end of the plate 16. It is provided with two oppositely-located lugs 47, through each of which near its outer end (see Fig. 7) is formed a vertical opening through which projects a pin 48.

49 indicates two curved flat springs, each secured at one end by a screw 50 to the inner end of one of the lugs 47 and bearing at its free end against one of the pins 48 to force such pin downward.

51 indicates a shaft loosely held between downwardly-extending projections 52 on the lugs 47, such shaft having secured at each end a disk 53, the edges of which disks enter narrow grooves 54 cut in the roll 37. The edges of the plate 16 are notched or slightly cut away, as shown in Fig. 1, so that the edges of the disks 53 will be directly in line with such side edges of the said plate, and thereby the paper that passes beneath the disks 53 will be creased, so that such creases will be the lines upon which the sheets are turned over the edges of the plate in the manner hereinafter explained.

55 indicates an arm secured at one end to the lower edge of the cross-bar 13 and extending beneath the rigid arm 46 and provided at its free end with a small roll 56, suitably journaled in a fork formed. in said free end. This roll projects through an opening 57 in the plate 16 directly above the opening 41 in the plate 15, so that such roll 56 bears upon the roll 38.

58 indicates another and'longer arm secured at one end by the same device that secures the arm 55 in place, said arm 58 extending over said arm 55 and having its free end, which carries a roll 59, terminating over the counter-shaft 26. Such roll 59 is journaled in a yoke formed at the free end of said arm 58 and projects through an opening 60 in said plate 16, so that such roll 59 bears upon the roll 39. In order that the pressure of the rolls 56 and 59 upon the rolls 38 and 39, respectively, may be regulated as desired, we have provided two screws 55 and 58. passing through suitable screw-threaded openings in the rigid arm 46 and bearing at their lower ends against said arms 55 and 58, respectively. The screw 55 also passes through a suitable unthreaded opening in'the arm 58, as indicated in Fig. 5. By this construction it will be understood, therefore, that the turning of the screw 55 will have no eifect upon the arm 58 or the roll carried by said arm 58.

As clearly shown in Figs. 1 and 5, those portions of the metal of the plate 16 forming the forward boundaries of the openings 57 and 60 are turned up, so as to avoid any possibility of the edge of the sheet of paper passing between the two plates 15 and 16 being caught at those points.

61 indicates a shaft suitably journaled in bearings at the rear end of the machine in the rear of the wide cross-bar 13 and having suitably secured to it a roll 62. 63 indicates another shaft suitably journaled in place and located directly below the shaft 61 and having secured to it a roll 64 of the same diameter as the roll 62. Each of these rolls 62 and 64 is preferably formed of rubber or other yielding material. These two shafts 61 and 63 are provided at one end with gears 65 and 66, which mesh with each other, and at the other side of the machine the shaft 63 is provided with another and larger gear-wheel 67, which meshes with a pinion 68, loose on a stub-shaft 69, which pinion in turn meshes with and is driven by a large gear 70, fast on the main drive-shaft 17. By this arrangement of gearing it is evident that upon the turning of the main shaft 17 through the pulley 18 the two rolls 62 and 64 will be driven in opposite directions, so as to draw between them a sheet of paper that may be pressed against them from the rear.

72 indicates a small gear fast on the driveshaft 17 and meshing with a large gear 73, that is loose on a stub-shaft 74, said gear 73' having secured to it, so as to turn therewith, a wide-faced cam 75.

76 indicates two rigid arms bolted or otherwise secured to the upper edge of the wide cross-bar 13 and inclining toward the rear of the machine, in the upperface of which arms is journaled a rock-shaft 77, to which shaft are rigidly attached two downwardly-extending rods 7 8-, between the lower ends of which is journaled a roll 79, the arms 78 and roll 79 constituting what may be termed a swinging frame.

80 indicates another rock-shaft suitably journaled in rearwardly-extending lugs 81, secured to the outer face of the supportinglegs, to which is rigidly secured two upwardlyextending rods 82, that have journaled in their upper ends another roll similar to the roll 79 and indicated by 83. The upwardly-extending arms 82 and the roll 83, journaled therein, also constitute another swinging frame similar to the one above described.

84 indicates a coiled spring secured to one of the rods 82 at one end and at its other end to the adjacent supporting-leg. This spring 84 is required to hold the last-named swinging frame in toward the end of the frameof the machine; but the upper swinging frame will not require any such spring, as gravity will tend to hold it swung in toward the end of the machine-frame.

As clearly shown in Fig. 4, the rock-shafts 77 and 81 are extended atone end to come in line with the wide cam 75, and from such extended ends project rods, the free end of each of which is turned so as to be brought in contact with the periphery of said wide cam 75. These rods are rigidly connected to their respective rock-shafts, the rod extending from the rock-shaft 77 being indicated by 85 and the rod that extends from the rock-shaft 81 being indicated by 86.

As clearly shown in Fig. 2, the face of the cam is provided with a deep notch which when the turned ends of the rods and 86 drop into it allows the two swinging frames before mentioned to move inward toward the two rolls 62 and 64, the purpose of which will hereinafter be explained.

87 indicates a vertically-arranged plate, which may be properly termed a follower, which is provided with two brackets 88, secured thereto at opposite sides and extending rearwardly from the follower, in the outer side faces of which brackets are formed suitable grooves in which rest horizontal guides 89, that support the follower and allow it to be moved toward and away from the end of the machine. This follower is adapted to have placed against its inner face a pile of sheets of paper standing on edge, such sheets of paper resting upon two or more rods 90, carried at the lower end of the follower, similar rods 91 being provided at the upper edge of the follower and still other similar rods 92, projecting from the side edges of the follower, so as to form means for retaining the paper in proper position against the follower. 93 indicates a handle projecting from the rear face of such follower to enable the follower to be readily moved by hand to force the pile of sheets toward and against the end of the machine. 94 indicates a pile of sheets arranged vertically against the follower 87.

95 indicates light flat springs projecting rearwardly from the machine and adapted to come in contact with the outer sheet. of the pile, two of such springs being secured upon the wide cross-bar l3 and the other two secured upon the outer face of the supportinglegs at that end of the machine. When the follower is forced in to bring the pile of sheets against the folding rolls 62 and 64, these springs 95 will bear lightly against the outermost sheet of the pile, and as such sheet is drawninward at its center and from beneath the ends of these springs 95 such springs will bear against the next sheet of the pile and aid in holding it, so as to preventit from also being caught and carried in between the rolls with the preceding sheet.

96 indicates a ridge on the inner face of the follower and extending from side to side thereof and is for the purpose of causing a buckling of the pile of papers at their central portion, so that the sheets may be more readily caught between the two rolls 62 and 64. as will be understood.

97 and 98 indicate turning-plates located at opposite sides of the machine, their rear ends being secured in the construction shown to the lateral. extensions 11 ofthe main frame and their main portions resting upon the bedplate and secured in place by screws passing through ears 99 and 100, formed with the plates 97 and 98, respectively. As best shown in Fig. 1, these guide-plates incline forwardly from the rear end of the machine toward each other, while their forward portions are parallel. These forward parallel portions are inclined downwardly toward the front of the machine, as clearly shown in Figs. 2, 3, and 5, and each is provided with an inwardly-extending portion, as best shown in Fig. 1, the forward end of the inwardly-extending portion of the plate 97 being considerably widened, as indicated at 101, its inner edge portion102 beinginclined, as indicated in Fig. 1, and, as best indicated by the dotted lines in Fig. 6, this enlarged end portion 101 of the turning-plate 97 is curved downward, so that its inclined edge 102 lies below the plane of the forward end of the inwardly-turned portion of the turning-plate 98.

103 and 104 indicate horizontally-arranged wheels, mounted, respectively, on vertical pivots 105 and 106, said pivots having secured at their-lower ends bevel-gears 107 and 108, respectively, (see Fig. 6,) said bevel-gear 107 meshing with a bevel-gear109, and said bevelgear 108 meshing with a bevel-gear 110, said can be adjusted with relation to the plate, as hereinafter explained, so that pressure is brought to bear upon the sheet of paper that is bent around the plate at practically the edge of the plate only.

111 and 112 indicate suitable coverings over the wheels 103 and 104, respectively, in each of which coverings one end of each of the pivots is secured. These coverings are each secured by two screws 113 and 114, that pass into lugs formed on the side bars of the frame. One of these securing-screws for each covering passes through a short slot, so that the covering'and its wheel can be slightly adjusted to bring the wheel closer to or farther from the adjacent edge of the plate 16. Such adjustment, however, is so slight as not to disturb the working relation between the bevel-gears carried by the pivots of the wheels and the bevel-gears on the shaft 27. In Fig. 1 the head of one of the screws is broken off to show the slot in the covering 112, such slot being indicated by 115. 116 indicatesashield extending across the rear end of the machine, to the side bars of which it is suitably secured, the inner end of such shield being preferably slightly turned up, as indicated in Fig. 5, to avoid any possibility of any folded sheet of paper passing thereunder catching on such end. Such shield, as shown, is suitably curved over the roll 45, and its rear end is bent to form a horizontal portion 117, through which horizontal portion and the lower part of the curved portion are formed slots 118, through which project small rollers 119, that are quite deeply notched on their edges, as clearly shown in Fig. 5, such rollers being secured upon a shaft 120, suitably journaled in the frame of the machine near its rear or delivery end and provided on that end opposite the side of the machine where the shaft 20 is located with a pinion 121, that meshes with a gear 122, secured upon the end of the shaft 28, which shaft, as before stated, is geared to the longitudinally-extending shaft 20.

123 indicates two light arms secured at their inner ends to the under face of the horizontal portion 117 of the shield 116 and acting to bear lightly upon the upper edges of the folded sheets as they pass from the machine into the device that receives them. The device that receives them is partially shown in Figs. 2 and 5 and consists of a long shallow tray the base of which is indicated by 124, movably attached by bent arms 125 to a cross-piece extending between the supporting-legs at that end of the machine, the forward end of such shallow tray having an end piece 126, provided with sides 127, said end piece 126 inclining upwardly and rearwarolly, so as to be in position to receive the folded sheets of paper as they pass over the roll 45. Any suitable movable head may be employed in connection with this shallow tray to keep the folded sheets standing in proper position between such head and the inclined end piece 126.

The operation of the machine is as follows: With a bunch of sheets of paper arranged against the follower 87, as indicated, the pulley 18 is to be rotated and at the same time sufficient pressure is to be applied to the rear of the follower to hold the bunch of sheets of paper against the small rolls 79 and 83, which form, as stated, parts of the two swinging frames hereinbefore described. As the pulley revolves the deep notch in the cam is brought around opposite the turned ends of the rods 85 and 86, into which notch such ends will be projected through the turning of their respective rock-shafts 77 and 81 caused by the inward pressure against the rolls 79 and 83 and aided in the case of the lower swinging frame by the coiled spring 84 and in the case of the upper swinging frame by gravity, and as such inward movement of the swinging frames takes place the slightly-buckled central portion of the pile of sheets is brought directly opposite the bite of the two rolls 62 and 64, and the outer-sheet of the pile is caught and drawn between such two rolls, imparting the first fold thereto. As soon as this sheet is caught and slightly drawn into the rolls it will at its ends be drawn away from the light flat springs 95, that press against it near its ends, and such springs will immediately be brought to bear upon the surface of the next succeeding sheet, tending to hold that sheet from being also carried forward between the rolls. Immediately upon the sheet being caught between the two folding rolls the turned ends of the rods 85 and 86 will by the continued action of the cam be forced outward and through the rocking of the shafts 77 and 81, to which the outer ends of such rods are rigidly attached, the rolls 79 and will be pressed against the pile of sheets, forcing them slightly away from the folding-rolls 62 and 64, so that it will be impossible for another sheet of paper to be caught between these folding-rolls until the turned ends of the rods and 86 again drop into the notch in the edge of the cam, when, in the same manner as already described, the swinging frames will moveinward to allow another sheet to be caught between the foldingrolls. This alternate moving back and forth of the swinging-frames insures sheets of paper being fed to the folding-rolls at absolutely regular intervals, so that there is no possibility of one sheet overlapping another as the sheets are carried through the machine. It is to be understood that the rolls 79 and 83 have very smooth surfaces and turn freely on their pivots, so as to offer but slight frictional resistance to a sheet of paper after it has been caught by the folding-rolls and is being pulled through such rolls. As a sheet of paper passes from the rolls it is of course in a folded c0nditi0n-- IIS that is, a single fold has been imparted to it, and with the fold thus imparted to it forming its leading edge itenters the space between the plates 15 and 16, and passing between the disks 51 and roll 37 it is given two well-defined creases by the edges of such disks,which disks, as before explained, project'into the narrow shallow circumferential grooves 54 in said roll 37, such creases being of course at right angles to the first fold of the paper and being also in position to adapt these creases to come at the side'edges of the plate 16 when such creased sheet is folded over such plate. As the paper passes between these creasingdisks and the roll 37 the projecting edge portions of the paper come in contact with the upper edge of the forwardly and upwardly inclined portions of the turning-plates 97 and 98, and such projecting edges are by these portions of the said plates turned up more and more, and as the turned-up sides of the sheet strike the inwardly-turned portions of the turning-plates the said side portions'of the paper are turned over the plate 16 toward each other, and that projecting portion of the sheet that is in contact with the turning-plate 97 will be turned down closer to the plate 16 and tucked beneath the projecting portion of the paper that is acted upon by the opposite turning-plate 98, this being due to the downward and inward inclination of the enlarged portion 101 of the plate 97. In the progress of the paper through these'foldingplates the portion of the paper that is turned by the plate 98 will lie beneath the enlarged part 101 of the inwardly-projecting portion of the plate 97. As the sheet of paper in this turned position protrudes from beneath the forward ends of the turning-plates 97 and 98 it is caught between the plate 16 and the flanges of the wheels 103 and 104 that overlie such plate and tightly squeezed between such flanges and the plate, so that the paper will pass from these wheels with two well-made folds imparted to it by reason of such pressure, and such folds will be along the creases that were earlier imparted to it by the disks 53. Passing from these wheels 103 and 10 1 the now folded sheet enters beneath the curved shield 116 and by the action of the roll it is carried outward, the shield 116 acting of course to turn it downward, and the notched rotating wheels 119 acting against it to direct it into the receptacle provided for the folded sheets, and as it arrives upon such receptacle the said notched wheels will come in contact with its upper end, throwing such upper end outward away from the end piece 126, so as to provide room against such end piece 126 for the next succeeding folded sheet.

It will be understood that through the gearing before described the various rolls that are j ournaled in the side bars of the main frame are uniformly driven and that the small presserrolls 56 and 59 will be turned, by reason of their engagement with the rolls 38 and 39, so that the sheet of paper passing through the machine will be properly and uniformly moved forward from one end of the machine to the other. The star-shaped wheel 43, which, as before explained, is preferably made of rubber or other yielding material, is likewise driven and acts upon the moving sheet at the time that it is engaged by the driven horizontal wheels 103 and 104s.

- By this invention sheets of paper can be very rapidly and accurately folded, so that when delivered from the machine they are adapted for insertion in mailing-envelops, and the construction is such as to insure a sheet being taken from the pile at every revolution of the driving-shaft, while at the same time by the provision here made for forcing back the pile of sheets immediately after a sheet has been seized by the pair of folding-rolls only one sheet at a time can be passed into the machine, and the sheets cannot be fed so close to each other as to lap or overlie, and thereby clogging of the machine is effectually prevented. Furthermore, the machine is so constructed that in case of any repairs or adjustment being required for any cause all of the parts are so located as to be readily accessible for this purpose.

That which we claim as our invention, and desire to secure by Letters Patent, is.

1. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for movably supporting a pile of sheets onedge opposite said rolls, substantially as specified.

2. In a paper-folding machine, the combi nation with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets on edgeopposite said rolls, and means for intermittently pressing said sheets away from said rolls, substantially as specified.

3. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, means for intermittently pressing said sheets away from said rolls, and devices bearing against the pile of sheets near the opposite ends of the pile from beneath which the outer sheet of the pile is drawn when such sheet is caught by said folding-rolls, substantially as specified.

1. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, means for intermittently pressing said sheets away from said rolls, and springs bearing against the pile of sheets and from beneath which the outer sheet of the pile is drawn when such sheet is caught by said folding-rolls, substantially as specified.

5. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, and means for applying pressure intermittently to said pile away from said rolls, said pressure being applied at opposite sides of said pair of folding-rolls, substantially as specified.

6. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a shaft, means for intermittently moving said shaft, and a device connected with said shaft and adapted upon the movement of the shaft to force the pile of paper away from the said pair of folding-rolls, substantially as specified.

7. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a rockshaft, means for intermittently turning the same, and a device connected with said shaft and adapted upon the movement of the shaft to force the pile of paper away from the said pair of folding-rolls, substantially as specified.

8. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a rockshaft, means for intermittently rocking the same, a device connected with said shaft and adapted upon the movement of the shaft to force the pile of paper away from the said pair of folding rolls, and a spring for drawing said device toward said pile of sheets, substantially as specified.

9. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a rockshaft, means for intermittently rocking the same, and a device connected with said rockshaft and adapted upon the rocking of the shaft to press the pile of sheets away, such pressure being applied along a line extending from one side of the sheets to the opposite,

side thereof, substantially as specified.

10. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a rockshaft, means for intermittently rocking the same, and a frame connected with said rockshaft and moving therewith, one member of such frame consisting of a journaled roll, said roll being adapted to be pressed against the pile of sheets to force them away from the folding-rolls, substantially as specified.

11. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a rockshaft at one side of each of said folding-rolls, means for intermittently rocking each rockshaft, and a frame connected with each rockshaft and movable therewith, each frame extending toward one of said folding-rolls and each frame comprising a journaled roll which is adapted to be pressed against the pile of sheets to force them away from the foldingrolls, substantially as specified.

12. In a paper-folding machine, the combination with a pair of folding-rolls and means for driving the same, of means for supporting a pile of sheets opposite said rolls, a rockshaft, a cam, a rod secured to said rock-shaft and engaged with said cam, means for operating said cam, and a device carried by said rock-shaft adapted to force the pile of sheets away from said folding-rolls, substantially as specified.

13. In a paper-folding machine, the combination'of a main frame, a bed-plate supported thereon, rolls jour'naled in said frame and projecting through openings in said bed-plate, means for driving said rolls, a plate over which sheets of paper are adapted to be folded, said last-named plate lying above the bed-plate and provided with Openings over the said openings in the bed-plate, two arms, each of which is secured in place at one end, and rolls jour naled in the forward ends of said arms and projecting through the said openings in the upper plate and bearing against said other rolls, one of said arms being arranged above the other, substantially as specified.

14. In a paper-folding machine, the combination of a main frame, a bed-plate supported thereon, rolls journaled in said frame and projecting. through openings in said bed-plate, means for driving said rolls, a plate over which sheets of paper are adapted to be folded, said last-named plate lying above the bed-plate and provided with openings over the said openings in the bed-plate, two arms, each of which is secured in place at one end, rolls journaled in the forward ends of said arms and projecting through the said openings in the upper plate and bearing against said other rolls, one of said arms being arranged above the other, and means for independently regulating the pressure of each of the rolls carried by the said arms, substantially as specified.

15. In a paper-folding machine, the combination of a main frame, a bed-plate supported thereon, rolls journaled in said frame and projecting through openings in said bed-plate, means for driving said rolls, a plate over which sheets of paper are adapted to be folded, said last-named plate lying above the bed-plate and provided with openings over the said openings in the bed-plate, two arms, each of which is secured in place at one end, rolls journaled in the forward ends of said arms and projecting through the said openings in the upper plate and bearing against said other rolls, one of said arms being arranged above the other, a rigid arm extending over said roll-bearing arms, and a pressure-regulating device extending through said rigid arm and through the upper roll-bearing arm and in contact with the lower roll-bearing arm, substantially as specified.

16. In a paper-folding machine, the combination of a main frame, a bed-plate supported thereon, rolls journaled in said frame and projecting through openings in said bed-plate, means for driving said rolls, a plate over which sheets of paper are adapted to be folded, said last-named plate lying above the bed-plate and provided with openings over said openings in the bed-plate, two arms, each of which is secured in place at one end, rolls journaled in the forward ends of said arms and projecting through the said openings in the upper plate and bearing against said other rolls, one of said arms being arranged above the other, a rigid arm extending over said roll-bearing arms, a pressure-regulating device extending through said rigid arm and through the upper roll-bearing arm and in contact with the lower roll-bearing arm, and asecond pressureregulating device carried by the said rigid arm and adapted to be brought in contact with the upper roll-bearing arm, substantially as specified.

17. In a paper-folding machine, the combination with a su p porting-frame and a plate carried thereby, of means for conducting asheet of paper beneath said plate with its side portions extended beyond the edges of said plate, and turning-plates secured to said frame on opposite sides thereof and adapted to turn said extended side portions of the sheets upward and inward, one of said turning-plates having its forward portion inclined downward, substantially as specified.

18. In a paper-folding machine, the combination with a su pporting-frame and a plate carried thereby, of means for conducting a sheet of paper beneath said plate with its side portions extended beyond the edges of said plate, and turning-plates secured to said frame on opposite sides thereof and adapted to turn said extended side portions of the sheets upward and inward, one of said turning-plates having its forward portion inclined downward and inward, substantially as specified.

19. In a paper-folding machine, the combination with a supporting-frame and a plate carried thereby, of means for conducting a sheet of paper beneath said plate with its side portions extended beyond the edges of said plate, and turning-plates secured to said frame on opposite sides thereof and adapted to turn said extended side portions of the sheets upward and inward, one of said turning-plates having its forward portion enlarged and lying below the plane of the inwardly-extending portion of the opposite turning-plate, substantially as specified.

tions extended beyond the edges of said plate, and turning-plates secured to said frame on opposite sides thereof and adapted to turn said extended side portions of the sheets upward and inward, one of said turning-plates having its forward portion enlarged and inclined inwardly and forwardly, substantially as specifie 21. In a paper-folding machine, the combination with a supporting-frame and a plate carried thereby, of means for conducting a sheet of paper beneath said plate with its side portions extended beyond the edges of said plate, and turning-plates secured to said frame on opposite sides thereof and adapted to turn said extended side portions of the sheets upward and inward, said turning-plates having inwardly-turned portions, one of said inwardlyturned portions having an inclined inner edge, substantially as specified.

22. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with the side portions of such sheet extending beyond the plate, of means for turning such side portions over the edges of the plate, and horizontally-arranged wheels overlying said plate at its edges and adapted to press the sheet of paper against the plate, substantially as specified.

28. In a paper-folding machine, the combination with a plate and means for. moving a sheet of paper along one face of said plate with the side portions of such sheet extending beyond the plate, of means for turning such side portions over the edges of the plate, horizontally-arranged wheels overlying said plate at its edges and adapted to press the sheet of paper against the plate, and means for positively driving said wheels in the direction of the movement of the sheet of paper, substantially as specified.

24. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with theside portions of such sheet extending beyond the plate, of means for turning such side portions over the edges of the plate, horizontally-arranged wheels overlying said plate at its edges and adapted to press the sheet of paper against the plate, a pin or pivot upon which each wheel is mounted, a bevel-gear on each pin or pivot, a shaft extending across the machine, bevel-gears carried by said shaft meshing respectively with said first-named bevel-gears, and means for driving said shaft, substantially as specified.

25. In a paper-folding machine, the combination with a plate and means formoving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of means for turning said extended portion over the edge of the plate, and a wheel having a beveled or inclined edge portion adapted to press said turned portion 7 portion adapted to press said turned portion of the sheet along the edge of the plate, and means for driving said wheel in the direction of movement of the sheet of paper, substantially as specified.

27. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of means for turning said extended portion over the edge of the plate, and a wheel having a groove in its periphery into which the edge of the plate and the paper turned over such edge project, substantially as specified.

28. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of means for turning said extended portion over the edge of the plate, a wheel having a groove in its periphery into which the edge of the plate and paper turned over such edge project, and means for driv-. ing said wheel in the direction of movement of the sheet of paper,substantially as specified.

29. In a paperfolding machine, the combination with a plate and means for moving a sheet of. paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of means for turning said extended portion over the edge of the plate, and a wheel having a groove with beveled or inclined sides into which the edge of the plate and the paper turned over such edgeproject, substantially as specified.

30. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of means for turning said extended portion over the edge of the plate, a horizontally-arranged wheel overlying said plate and the paper turned around the edge of the plate, said wheel being adapted to press said paper against the plate, and means for adjusting said Wheel toward and from the plate, substantially as specified.

31. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of means for turning said extended portion over the edge of the plate, a horiZontally-arranged Wheel overlying said plate and the paper turned around the edge of the plate, said wheel being adapted to press said paper against the plate, a covering for said wheel in which one end of the pivot 01' pin of said wheel is journaled, a gear attached to the other end of said pivot or pin, another gear meshing with said first-named gear, means for driving said second gear, and means for shifting said wheel-covering without destroying the engagement of said two gears,

substantially as described.

.32. In a paper-folding machine, the combination with a plate and means for moving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, said plate being notched or cut away at its edge near its forward end, of a rotatable disk projecting through said notch in the edge of the plate, a roll beneath said disk with which the edge of the disk comes in contact, and means for driving said disk, substantially as specified.

33. In a paper-folding machine, the combination with aplate and means for moving a sheet of paper along one face of said plate with a side portion of the sheet extending laterally therefrom, of a bracket supported above said plate, a hearing at the lower end of said bracket, a shaft supported therein, a creasing-disk on the shaft, a vertical pin longitudinally movable in and opening in said bracket and bearing on the said shaft, and a spring for forcing said pin downward, substantially as specified.

34. In a paper-folding machine, the combi nation with means for folding a sheet of paper, of a roll over which the folded sheets pass, a receptacle for receiving the folded sheets, a toothed wheel adapted to engage the upper ends of said folded sheets and move them in said receptacle, and means for driving said roll and toothed wheel, substantially as specifiec.

35. In a paper-folding machine, the combination with means for folding a sheet of paper, of a roll over which the folded sheets pass, a receptacle for receiving the folded sheets, a toothed wheel adapted to engage the upper ends of said folded sheets and move them in said receptacle, said toothed Wheel being in contact with said roll, and means for driving said roll and toothed wheel, substantially as specified.

FREDERICK G. NIND. FREDERICK J ULYAN.

Witnesses:

ALBERT H. ADAMS, MINNIE A. HUNTER. 

